After changing passwords for iCloud, Mail is stuck in a do-loop "There is a [problem..." The error appears in less than one second after responding "Later"
iMac, Mac OS X (10.7.4)
Quit Mail. Uncheck the Mail box in the iCloud preference pane. Check it again and test.
Nope. Turns out that even though I have two Macs running 10.9.4, the one in question doesn't get the SMTP settings changed by iCloud settings when the password is changed, so I had to "Edit" the account in Mail, plow down to the password settings for the Apple SMTP server, and change the password myself. Nothing in the System Preferences iCloud setting tab lets you change any settings on the local machine. Apple is sure they are controlling everything when you make changes in iCloud, but they are wrong. Identical versions of 10.9.4 are configured differently on two different Macs.
Why is mail stuck in a do-loop of "There is a problem" with the mail account after changing iCloud password? How can it be fixed?
